background preloader

Learning React.js: Getting Started and Concepts ― Scotch

Learning React.js: Getting Started and Concepts ― Scotch
Introduction Today we are going to kick off the first installment in a new series of tutorials, Learning React, that will focus on becoming proficient and effective with Facebook's React library. Before we start building anything meaningful, its important that we cover some base concepts first, so lets get this party started. What is React? React is a UI library developed at Facebook to facilitate the creation of interactive, stateful & reusable UI components. One of it's unique selling points is that not only does it perform on the client side, but it can also be rendered server side, and they can work together inter-operably. It also uses a concept called the Virtual DOM that selectively renders subtrees of nodes based upon state changes. How does the Virtual DOM work? Imagine you had an object that you modeled around a person. Now think about if you took that object and made some changes. Because React is using a fake DOM and not a real one, it also opens up a fun new possibility. <!

Build A Real-Time Twitter Stream with Node and React.js ― Scotch Introduction Welcome to the second installation of Learning React, a series of articles focused on becoming proficient and effective with Facebook's React library. If you haven't read the first installation, Getting Started and Concepts, it is highly recommended that you do so before proceeding. Today we are going to build an application in React using Isomorphic Javascript. Iso-what? Isomorphic. This is the concept behind frameworks like Rendr, Meteor & Derby. Why is this awesome? I'm an Angular fan just like everybody else, but one pain point is the potential SEO impact. But I thought Google executes and indexes javascript? Yeah, not really. Enter React. React is amazing on the client side, but it's ability to be rendered on the server side makes it truly special. Getting Started Alright gang, lets get down to brass tacks. Here is a quick look at what we'll be building. Let's take a look at some of the tools we are going to use besides React: Server Side Directory Structure package.json server.js

Getting To Know Flux, the React.js Architecture ― Scotch Introduction Welcome to the third installment of the Learning React series. Today we will be learning about how Facebook's Flux Architecture works, and how to use it in your own projects! If you haven't already, I strongly recommend you check out the first two installments in this series, Getting Started & Concepts and Building a Real Time Twitter Stream with Node and React. What is Flux? Flux is an architecture that Facebook uses internally when working with React. That said, Facebook does provide a repo that includes a Dispatcher library. A typical Flux architecture will leverage this Dispatcher library, along with NodeJS's EventEmitter module in order to set up an event system that helps manage an applications state. Flux is probably better explained by explaining its individual components: Lets take a look at what this process looks like graphically: How does the API relate to this? The Dispatcher So what's this Dispatcher all about? So it's essentially pub/sub? Not exactly. Dependencies

Creating A Simple Shopping Cart with React.js and Flux Introduction Welcome to the fourth and final installment of the Learning React series! Up to this point, we've learned how React's API allows us to create rich stateful components, how to use them in practice & how Facebook's Flux architecture works. Today we are going to put all of it together to create a basic shopping cart application. If you haven't already, I highly recommend checking out the first three parts of this series: ReactJS 0.12 During the writing of this series, React released version 0.12 which made some fairly significant changes. The /** @jsx React.DOM */ header is no longer required when writing JSX syntaxrenderComponent is now renderrenderComponentToString is now renderToString You can check out the entire changelog on the official blog post. Getting Started Our first step to architecting an application is defining what it should do. This is what our finished product should look like: This app is going to be purely client side, so we aren't going to need a server. app.js

Building A User Interface with ReactJS | DiscoverSDK Blog In the midst of the night, I decided to highlight the features of a powerful Javascript library... React.js... while teaching you to build a user interface within a process. In my previous article on Javascript Frameworks, I have mentioned about React.js -- which is an open-source Javascript library used for building views that is rendered as HTML in your web browser. React provides views which can be used for any interactive graphics creation, including but not limited to, sidebars, tabs and most importantly: user interfaces. The React.js code is merged with your HTML code in the front-end side, so when you load the page on the browser, then it will automatically use the external libraries (as long as you put the reference to it in the start). React.js allows you to create rendering objects and graphics (i.e., widgets, UIs, etc.). React.js is maintained by Facebook, Instagram and the independent developers that participate in the development of React.js. Let's talk about its features <!

How React Components Make UI Testing Easy Testing back-ends is easy. You take your language of choice, pair it with your favourite framework, write some tests, and hit “run.” Your console says “Yay! Sure, test-driven development (TDD) is weird at first, but a predictable environment, multiple test runners, test tooling baked into frameworks, and continuous integration support, make life easy. Then Backbone got big. We all switched to front-end MVC. That’s because testing front-end code and UI components is kinda hard. It’s not so bad if all we want is to check that our models behave well. Write well-formed, isolated modules. That’s it. It used to be that running front-end tests was the hard part. In 2012, Vojta Jina released the Karma runner (called Testacular at the time). What more could we wish for? Front-End Testing Requires More Than Just Unit Tests But front-end code isn’t about manipulating data. Here’s what we want to be able to do: Testing UI Components with React React is the easiest way to achieve these goals. The Setup

Tutorial: Intro To React - React Edit on GitHub Before We Start# What We're Building# Today, we're going to build an interactive tic-tac-toe game. If you like, you can check out the final result here: Final Result. Try playing the game. Once you get a little familiar with the game, feel free to close that tab, as we'll start from a simpler template in the next sections. Prerequisites# We'll assume some familiarity with HTML and JavaScript but you should be able to follow along even if you haven't used them before. How to Follow Along# There are two ways to complete this tutorial: you could either write the code right in the browser, or you could set up a local development environment on your machine. If You Prefer to Write Code in the Browser# This is the quickest way to get started! First, open this starter code in a new tab. You can now skip the next section about setting up a local development environment and head straight to the overview. If You Prefer to Write Code in Your Editor# Help, I'm Stuck! Overview# What is React? Keys#

5 Practical Examples For Learning The React Framework - Tutorialzine You've probably heard about the popular JavaScript framework by Facebook - React. It is used by many popular websites, including Facebook itself and Instagram. In this article you will find 5 practical examples that have been built with React, and which will give you a head start with the framework. Update (Feb 18th 2016): We've made the examples work with React 0.14.7 What is special about React? React is built around the concept of components. However, the flip side is that it takes a bit more code in React to achieve the same things that can be easily done with a data binding, as you can see from the examples below. How to use it? To use React, you need to include a single JavaScript file in your page. This gives you access to the global React object, which holds a number of useful methods, some of which you can see in these examples. But enough talk, let's see some code! 1. As I mentioned, the building blocks of react apps are components. 2. 3. 4. 5. Test what you've learned Great job!

ReactJS - Step-by-Step Tutorial on Quiz Development - Bytes Cravings I just finished up writing a simplistic/trivial framework using ReactJS using which one could quickly create online quizzes. The code for this could be found on github on following page named as ReactJS-Quiz. I would like to take this opportunity to share AngularJS-Quiz that I wrote sometime back. I must say that I found writing quiz framework using ReactJS more fulfilling as it got aligned to my OOP oriented thinking and I was not required to envisage templates etc as in case of AngularJS. I shall be presenting some of the following key concepts of ReactJS while explaining the functionality of Quiz framework. How to Design UI by Components? To make use of this framework, all that is required to be done is define JSON data model (or retrieve from server) as shown later in this article and that is it! Set custom timing for each question paperMarks based on complexity: One could associate marks appropriately to the questions based on their complexity. How to Design UI by Components?

ReactJS Tutorial React is an open source, JavaScript library for developing user interface (UI) in web application. React is developed and released by Facebook. Facebook is continuously working on the React library and enhancing it by fixing bugs and introducing new features. This tutorial starts with the architecture of React, how-to guide to setup projects, creating components, JSX and then walks through advanced concepts like state management, form programming, routing and finally conclude with step by step working example. This tutorial is prepared for professionals who are aspiring to make a career in the field of developing front-end web application. This tutorial is intended to make you comfortable in getting started with the React concepts with examples. Before proceeding with the various types of concepts given in this tutorial, we assume that the readers have the basic knowledge in HTML, CSS and OOPS concepts.

Related: